wallet 0.9

I had to do one more release of kasetkey (the program included in the
wallet distribution for talking to AFS kaservers) so that we can move our
kadmin remctl interface prior to turning off the AFS kaservers. Since I
was doing a release anyway, I also implemented support for wallet store to
take data from a file or standard input, fixed a few test suite and build
issues, and added support for builddir != srcdir builds.